JMX Brands President and CEO Jim Miller credits the companies continued success on the strength of the organization’s culture. “We’ve maintained a small-business mindset where people are allowed, even encouraged, to question the system,” he said. “We embrace change, try new things, aren’t afraid to fail, and we depend on strong collaboration among our various teams in order to meet the constant waves of new challenges in a very exciting context of ecommerce.”

The Inc. 5000 ranks companies based on three-year percentage revenue growth. Companies that make the list must also be U.S.-based, privately held, and have achieved revenues of at least $2 million in the most recent year.

“This achievement puts you in rarified company,” said Inc. Magazine Editor in Chief James Ledbetter in an email to companies that made the list, citing Microsoft, Chobani, and Zappos.com among the elite group.